The use slogans as advertising has been a main factor of making a product successful. However, the use of the same slogan from different companies may not be convenient for either side. The phrase “It’s the Real Thing” was used by the Coca-Cola company, to promote the drink, and the Grove Press, to advertise the book Diary of a Harlem Schoolteacher. This two-way advertising, however, did not please Ira Herbert, an executive of Coca-Cola. Herbert had written a letter directed to Richard Seaver, a representative of Grove Press, demanding that his company was to stop their use of the phrase, “It’s the Real Thing”, due to how the Coca-Cola company had “ownership” of the phrase first and how there would be confusion among the people between both